/*
 * Copyright 2025 coze-dev Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { useState } from 'react';

import {
  useCurrentEntity,
  useService,
} from '@flowgram-adapter/free-layout-editor';
import { type ViewVariableType } from '@coze-workflow/base/types';

import { WorkflowVariableService } from '../legacy';
import { useVariableTypeChange } from './use-variable-type-change';

export const useVariableType = (
  keyPath: string[],
): ViewVariableType | undefined => {
  const node = useCurrentEntity();

  const variableService: WorkflowVariableService = useService(
    WorkflowVariableService,
  );

  const originType = variableService.getWorkflowVariableByKeyPath(keyPath, {
    node,
  })?.viewType;

  const [variableType, setVariableType] = useState<
    ViewVariableType | undefined
  >(originType);

  useVariableTypeChange({
    keyPath,
    onTypeChange: ({ variableMeta }) => {
      setVariableType(variableMeta?.type);
    },
  });

  return variableType;
};
